today the fbi is at tamerlan's widow's house, katherine russell and they are interested in seeing what they might find, what she might say, what she might have known. so there will be a focus on the family and not necessarily a focus on did they help him but what they could have known along the way. did they know enough to come to authorities and chose not to? some would-be terrorists have lived with room mates and the room mates have not known how far along they had gone. that is one part of what they are going to look at. they are going to reconstruct the rest of the crime scene and see who fired what bullets at who, what happened when they killed the cop at mit. what happened when the transit came and how close did they come for leaving boston and heading for new york where they admitted they intended to throw bombs in times square. and that's about where they are right now. >> those are all important questions. thank you so much. >>> terrorism analyst is a senior partner. being a muslim does not mean you're an extremest. from what you know about talking about jihad on the phone wit